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Structural Ceramics Material

Hangzhou JWG Technology Co.Ltd | Updated: Sep 11, 2017

Structural ceramics are high-temperature, resistant to erosion, corrosion resistance, high hardness, high strength, low creep rate and other excellent mechanical, thermal, chemical properties, commonly used in various structural components of advanced ceramics.

Structural ceramics have excellent strength, hardness, insulation, heat conduction, high temperature, oxidation resistance, corrosion resistance, abrasion resistance, high temperature strength and other characteristics, therefore, in very harsh environment or engineering application conditions, the show high Stability and excellent mechanical properties, in the material industry has been much attention, its use is also growing. The global and domestic industry for high precision, high wear resistance, high reliability mechanical components or electronic components increasingly stringent requirements, so the demand for ceramic products considerable attention, the market growth rate is quite impressive.

Structural ceramics in the material, there are a class of structural materials mainly use its strength, hardness and toughness of mechanical properties made of various materials. Metal as a structural material, has been widely used. However, because the metal is susceptible to corrosion, it is not resistant to oxidation at high temperatures and is not suitable for use at high temperatures. The emergence of high temperature structural materials, make up for the weakness of metal materials. This kind of material has the advantages of being able to withstand high temperature, not afraid of oxidation, acid and alkali corrosion, hardness, wear resistance, low density, as high temperature structural material, is very suitable.

Alumina ceramics (artificial corundum) is a very promising high temperature structural material. It is a high melting point, can be used as high-grade refractory materials, such as crucible, high temperature furnace tube. The use of alumina hardness of the advantages of large, can be used in the laboratory used in corundum grinding machine, used to grinding less than its hardness of the material. With high purity raw materials, the use of advanced technology, but also can make alumina ceramic transparent, can produce high pressure sodium lamp lamp.

Silicon nitride ceramic is also an important structural material, it is a super-hard material, small density, itself is lubricated, and wear resistance, in addition to hydrofluoric acid, it does not react with other inorganic acids, corrosion Strong ability; high temperature can also antioxidant. And it can resist the hot and cold impact in the air heated to more than 1000, the rapid cooling and then a sharp heating, it will not break. It is silicon nitride has such a good character, it is often used to manufacture bearings, turbine blades, mechanical seal ring, permanent mold and other mechanical components.

Boron nitride ceramics, boron carbide ceramics, is a new industrial materials, it is a hexagonal crystal, with a scaly structure. Its appearance like ivory. Boron nitride ceramics with the development of the aerospace and electronics industry and developed in the industry has a wide range of uses. As early as in the year has been found, from the Second World War after this material for a lot of research work, until the year to solve the hot-pressing method after the rapid development of China's success since the study of the Greek bow raw materials, the successful development of the year Hot-pressed ceramics, and has been applied to my mouth industry and technology.

Artificial gemstones, rubies and sapphires are the main components of Al2O3 (corundum). Ruby is red because it is mixed with a small amount of chromium compounds; and sapphire blue is due to mixed with a small amount of titanium compounds. In 1900, scientists have used alumina melting after adding a small amount of chromium oxide method, the system out of the quality of 2g-4g ruby. Now, has been able to produce large to 10g of ruby and sapphire.

Ceramics mainly refers to the play of its mechanical, thermal, chemical and other properties of a large class of new ceramic materials, it can work in many harsh working environment, which has become the key to many emerging science and technology to achieve.


Hangzhou JWG Technology Co.Ltd